Continuous And Discontinuous Fibre Engineered Composites (CADFEC)

连续和不连续纤维工程复合材料 (CADFEC)

• 批准号: 105796
• 金额: $ 38.06万
• 依托单位: EXPERT TOOLING & AUTOMATION LIMITED
• 依托单位国家: 英国
• 项目类别: Small Business Research Initiative
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=105796
• 关键词: Continuous; Discontinuous; Fibre; Engineered; Composites

Development of ever lighter vehicle bodies will increase efficiency and environmental performance of all Aston Martin vehicles through reduced vehicle mass, and offers opportunity for increased range and improved attributes of electrified products. Mass reduction is a critical element to achieving these improved vehicle emissions and efficiency. Replacing structural components with carbon fibre composites offer the largest weight reduction potential, with many examples now implemented in the low volume luxury car market. Migration to higher volume applications was hindered by the absence of affordable materials and of high volume manufacturing methods needed to control costs. A newly developed material from Dow, VORAFUSE(tm) EMC (EMC), is the first product that combines high volume materials production and manufacturing methods for lightweight carbon fibre components.The use of Carbon Fibre Reinforced Plastics (CFRP) in Body In White (BIW) structures could achieve a 30% weight saving over current aluminium vehicle structures and deliver direct improvements in vehicle performance and CO2 reductions. After the successful completion of the Innovate UK funded InterComp project, it has been identified that Compression Moulding could still offer a financially favourable option for an increased use of CFRP, but there remains material processing concerns relating to out-life, tack and the inability of pre-forms to hold their shape prior to moulding. CADFEC is a 18-month project aimed at tackling a number of critical R&D gaps that still exist in material management of preforms used in a 2-stage process (preform then mould), plus issues in achieving higher volume fractions required when using open-tooled Double Diaphragm Forming (DDF) process.Dow EMC offers great potential in resolving a number of these issues and there is a strongly shared interest to collaborate between Dow and this proposed consortium to better understand the constraints of manufacturing process and their effect on properties (e.g. due to fibre alignment, weld/meld lines, combined EMC with selective prepreg usage).Most current carbon composite automotive structures rely on additional metallic reinforcements or heavily cored sections to meet side pole impact performance requirements. The intention of this project is to challenge this strategy, combining the EMC benefits of cost and form with the strength and stiffness of continuous (i.e. woven or unidirectional) fibres. The project will therefore focus on mixed fibre architecture composites and the automation of the associated processes to ensure the technology is cost effective. A demonstrator component will be produced to showcase the capabilities of both material and process.

开发更轻的车身将通过减少车辆质量来提高所有阿斯顿·马丁车辆的效率和环保性能，并为增加电动产品的续航里程和改善属性提供机会。减轻质量是实现这些改善的车辆排放和效率的关键因素。用碳纤维复合材料取代结构部件具有最大的减重潜力，目前在小批量豪华汽车市场上有许多例子。由于缺乏负担得起的材料和控制成本所需的大批量制造方法，向大批量应用的迁移受到阻碍。陶氏新开发的材料 VORAFUSE(tm) EMC (EMC) 是首款将大批量材料生产和轻质碳纤维部件制造方法相结合的产品。在白车身 (BIW) 结构中使用碳纤维增强塑料 (CFRP) 可以比现有铝制车辆结构减轻 30% 的重量，并直接提高车辆性能并减少二氧化碳排放。在 Innovate UK 资助的 InterComp 项目成功完成后，人们发现压缩成型仍然可以为增加 CFRP 的使用提供经济上有利的选择，但仍然存在与寿命、粘性以及预成型件在成型前无法保持形状有关的材料加工问题。 CADFEC 是一个为期 18 个月的项目，旨在解决两阶段工艺（预成型然后模具）中使用的预成型件材料管理中仍然存在的一些关键研发差距，以及使用开放式工具双隔膜成型 (DDF) 工艺时所需实现更高体积分数的问题。陶氏 EMC 在解决许多此类问题方面具有巨大潜力，并且陶氏与该拟议项目之间有强烈的合作兴趣。 联盟以更好地了解制造工艺的限制及其对性能的影响（例如，由于纤维排列、焊接/熔合线、EMC 与选择性预浸料的使用相结合）。当前大多数碳复合材料汽车结构依赖于额外的金属增强材料或重芯部分来满足侧杆冲击性能要求。该项目的目的是挑战这一策略，将成本和形状的 EMC 优势与连续（即编织或单向）纤维的强度和刚度结合起来。因此，该项目将重点关注混合纤维结构复合材料和相关流程的自动化，以确保该技术具有成本效益。将生产一个演示组件来展示材料和工艺的功能。